Machine for molding liquid-borne particles.



I 1. H, RIVERS. MACHINE FOR MOLDING LIQUID BORNE. PARTICLES. APPLICATION FILED DC. 2 2, I906. RENEWED AIf'R. I, I9l2-' Patented Mafia,

2 SHEETS-SEEI- lam/ 7%;

Patented May 11, 1915.

2 SHEETS-SHEET 2- 1. -H. mm.

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\\\\\\\Q w w/ iilllml MACHINE FOR MOLDING LIQUID BORNE PARTICLES. APPLICATION FILED 05c. 22, 1906. R'ENEWED APR. 1. 1912.

v PATENT oFrioE.

JUILIAN "RIVERS, OFSTQ F S, S U 'Assi'eivoit, B z-missus Assreivriunirsjro i 'UNIv RsAL EIBRECOMPANY, or NEW YORK, N.YY., A CORPORATION 01? DELAWARE.

T (12; whom a may 0.0

Macrame FOR MOLDING mourn-Bonn e PARTICLES. T

' Specifications fLetters Patent. Pat nt May 11 915,

.A 'pplication "filed December 22, 1906Serial nor-Mame. Renewed April 1, 1912-. Serial No. 687,778.

Be it known that 1, JULiANf-H; RIVERS,

I a'citizen of the United States,'residing at St. Louis, .Missouri, have invented anew and useful Machine for lvlolding Liquid- Borne' Particles, of. which the following is a; specification.

'. This l invention relates to machines for mol'ding',' shaping or casting liquid borne fibrous and other particles into integral commercially usable articles; and'it has for its object to produce an improved machine of the character referred to comprising a --c'on taineior vessel arranged toreceive a quantity of liquid suspendedlm'aterials and a) reticulated former or mold disposed in ju ta pOSitiOIi to an; opening in-"the coi ta ner to stop 7 the suspended substances while the liquid-- is forced through such re-" the former or mold under pressure suificient to compact saidisubstances into anintegral tained substances and through the walls of i object which may'be'used for the usual purposes of'objects or ai ticles of its class made or] constructed .of other material.

Another obiect is to produce a mold -or fbrin'erad-apted' "for use in 'connection niith a machine of the character named, 'having a Wall or walls composed of a plurality of perforated or reticulated sections, in combination with controlling mechanism for holding's'aid sections in rigid relation to each other While the article isl being formed,

. and operable to Withdraw said sections from contact with such article after complete for mation thereof.

j Particularly and specifically this inven-.

tion relates lac-mechanism usedin carrying out, the. process. described in my Patent #80i,432,- issued November 14, l90 5,.for processof 'c ompacting liquid-borne ffib ous "pulp, and the process disclosed in myapplication for Patent-Serial No. 276,179, filed August 25, 1905; for 'processo'f compacting particles; and the specific object of the incommerciallygusable articles may, be manu factured from finelv, divided particles by. the DITQ GSS BSdiSClOSBd in said patent and. p w I sition, and in rigid relation when -1I1'-1'I-10ld form.

application. v I

In the use and operation of this machine I commence at that point where the desired amounts. and proportions of the=-materials ve'ntion is' to producea machine whereby that by stirring or-agitating the liquid conportingwvall of the former.

to be compactedlare alread'y aggrouped, so

taining them thgyl may'be'thoroughly diffused as require for theibest. final results. I,w1l1 explain the various stages and results "in connection with the operation of an an:

proved form of machine for shaping articles of one class, stating; however, that the; machine can be 4 used Withequal satisfaction in. producing various. other articles, all of Wl'l1Cl1' Wlll be readily understood'by those.

skilled in this ,art. i In the drawings Figure l is a vertical sectional viewof a machine having a mold for vproducing boxes. Fig. 2 is. a side'elevation thereof, with part of the' framework broken away 1n order better to "show some of the essential parts. @Fig. 3 is a viewof. the

under side of the bottom ofthe container and. former. F 1g. 4 is asection thereof, and

ction of thesupclosing, such, forinstancc; as the'float' valve 3, which will be forced to closed posi-tion whenever the tank or container' becomes filled. The bottom 4 of the container is con- .cave or depressed and has -'an opening 5 through which the contents may pass to the former or formers, supported underneath.

The former shown consists ofuthe perfo rated metallic sheets 6 attached-- to hinged supports 7.

Across the innerfaces of said supports alrefor'ined V-shaped grooves Sand intersecting the same on the outer faces of said supports similar grooves 9fa1'e formed, said grooves being of suiiicient depthto out into or .intersect the grooves 8 and form holes 10; The supports 6' are attached to they may be swung outward at times.

oggle connection 13 be utilized 'to control and brace the sides in operativelpd.

'the plates l-l'which are hinged" at 12so that v same construction as the sides, consisting of a perforated plate or screen 14 and a grooved and perforated support 15. The

upheld by links 19 carried by a shaft 20 onlatter is attached to supporting members 16 operating. through guides 17 and connected at their lower ends to a shaft 18 which is the. lower ends of the links 21, suspended by the frame of the machine. The ends of the shaft 18 operate in guides 22. By swinging the shaft 20 outward as indicated by dotted lines in Fig. 1, the bottom will be lowered a sufficient distance to permit removal of s the article compacted in the formers.

The wateroutlets through the bottom and walls of the former or mold become larger and larger as the distance from the inner surface increases. Water ejected through holes in thick material which do not increase in size toward the exit ends adheres in more or less quantity Within the holes.

-Absorbent material placed against the surface of the material having the holes will drops of water do not encounter all sides of the outlets and, therefore, do not meet with the air resistance nor resistance of adhesive attraction which is met by water leaving small holes which do not enlarge in the direction of flow.

23 indicates a valve controlled inlet through which additional liquid may be injected into the container. This inlet enters, preferably, near the bottom, and is injected obliquely upward Fig. 1), so that liquid entering therethrough will agitate and assist in diffusing the contents of the container.

In practice the fibrous and other material or materials to be molded or formed,

. mixed with more or less liquid,-are put into the container through the inlet 2, and at the same timeliquid is injected into the container through the inlet 23, the flow thereof continuing until the container is nearly full, or until the valve 3 is closed.

The stream of liquid so injected agitates the contents and causes the materials that are to be compacted to become thoroughly diffused. As soon as the materials are put into the container the liquid commences to fiowthrough the perforated sides and bottom of the former with nearly equalspeed. This movement and escape of the liquid re- 'sults in the depositof some of the fibrous material againstthe. sides and bottom of the former or mold, the perforationslherein being too small to permit passage of To minimize this re-absorption the said material. The fibers being thus laid across the holes stop the material following, as the liquid] flows, or is forced, through the former. After the container has been ffilled and after a portion of the material the exterior of the product. If light substances alone are to be compacted, the water or liquid entering through the pipe 23 will cause approxima ely even diffusion of such substances. If heavy substances are included, the liquid nearer the top of the coir tainer will be somewhat clearer than that atthe bottom. Heavy and light particles, such as fibrous pulp and powdered cements or other minerals may be mixed together to form a composite article, in which case the pulp will be nearly evenly distributed in the liquid while the mineral substances will be heaviest near the bottom. In such case the cement injthe finished product will be densest near the surface first formed while the greatest quantity of pulp will be toward thesurfacc last formed, but there will 'be no stratification or formation of layers. This is the structure of highest cfiiciency for many articles such as boxes which are subject to frequent handling and the exterior of such articles should be the first formed. The pressure is continuous until all of the water is driven out through,

and all of the other material into, the perforated former or mold, Then the pressure is cutoff and the product removed from the former by lowering the bottom upon which the product rests, the sides at the same time swing outward on their hinged supports in order to give free movement. The product may then be removed manually from the bottom and the latter returned toclosed position when the machine is ready for further use.

'VVhile I have shown a machine having a capacity of shaping or forming one article at a time. it is obvious that machines may be used which have a plurality of formers. and "that many articl s may be produced at each operation. iAft r removal, the articles may be iibg'ected tolhe'at or chemical treat merit,{though this may be found incsscntial' in man ifhstances. The mechanism may be varied within equivalent limits \Yitlb out change of result or of quality of the product, and without in the least depart- I" am ss;

v ing froln the spirit "and scope oi the inf ient omand,

Hence without restricting myself to exact;

features, what-I 'cl aim 'as newjand desire to secure by Letters Patent is 1. In a molding machine, the combination with a series ofpivoted wall sections, and: a

perforated, plate supported; on. the inner side 0f each'of said sections,

operable: elfectively to' o've said wall sec;

time together effectively to position said plates, in the form of an inclbsure,-and 'a' container opening into-"the inclosure'formed by .saidwall. sectiol'is and said bottom, substantially as specified.

2; The combination ,with a container, of

a mold-composedof a-,'series' of sections piw- .oted- .to. said container, a .bottom section,

linksv supported by" said container,- and con-i nections between saidlinksand said, bottom section whereby operation 'of said links will move saidbottom section, substantially as specified." I

. y 3.3;Thecombination with'a container," and a mold, of links pivotally supported by said container, shaft supported by. rSaid links, other links supported by said shaft, a

member carried. by said second named links, a and a connection'fromsald member to sald mold whereby oper tion of saidolinks will open andclose sai specified. i

-m'ea ns for holding said bottom section against said pivoted-sections, s iibstanftially g 14L A'machinefor molding particles,c'0 m-' tion' arranged to hold said pivoted-sections together, substantially as specified.

as specified.-

5, The combination with a containerpoli a mold composed of a series of sections pivoted to sand container, and abottom sec- 6. The-combination with-a container, of

.a mold composed 'of aseries of sections piv oted to said container, a bottom section, and means for operating said bottom section into and out of engagement with said pivoted sections, substantially as specified.

7.;A mold comprisinga s'upport, aserie's' of wall forming sections pivoted to'ysaid.

support, and .-'movable.-into and "out, of contact with each other eifcctivelyuto constitutefand to open the walls of the mold, and

i a bottom section-operable efi'ectiyely'tomove said wall s'ectionsQYinto'j'engagement with a each other, substantiallyfas specified.

r so,

8. A" mold comprising a support, a series of perforated wall sections. pivoted to said;- I

gmeanssupporting said mOld ad a-Cent'to said support, a bottom section holding' said wall sections together, and levers operable to release said bottom andwallsect1ons, substanl I I forclosing sai'diinlet-passagepand.apassage tially asspeciriedfi a bottom section mold, substantially as i -9,- f A, mold aof wall sections pivoted to said i support, ;a

perfiorated plate carried Toy-each of; said by said j devices, "substantially. as

1 sections, devices ioperable to meve. saids'ec 9 trons into and out of contact with each other,

of wall forming sections pivoted-to said support, abottom section, a sha-{r't sup'porting said bottomisection, giiideways in which said-shaft is movable, ;and.manually ope'rf able connections to move said shaft and thereby close; the w mold, substantially as 11 A mold-comprising a' support,aser1es of wall sections pivoted 'torsaid support, a bottom' sect1on, and-Inanually operable connections formoving-sai-d bottom section ef fectively-to lock said wall sections in eng gemen't with each other, substantiallyfas 12. A- moldzcomprising a s'p'pport, aseries of wallsections pivoted to said su'pport,-la

bottom section holding. said wall sections'in engagement with ,each other;and-pivoted connections for releasing said bottom section a :5 and thereby the wallse'ctions, substantially as specified.

conta'iner,'-; abottom section, means :for. op-

"erating-fsaid bottom section. into and out of engagement with said--mold: sections, and

guides [for said operating means, 'substan tially'a's specified.

prising an a tation'container, mold 'wall sections'pivo edsto. said container, a mold bottom section, and} links operable to cause said bottom section to locksaid wall sec- .tions in the form of. the. mold, 'SllbStil-Iltially as'specified-T" H i v *15. In a machine of the character de- .951. I 13,111 a machine' of' thecharacter de scribed, the combinatlonwith the'contai-ner, ,ofa series. of mold sections pivoted to said p scribed,l a container," m'old 'wall sections piv- 'oted .to said container, ,a'-mold" v-bottom sec-1 tion, links operable to cause-said bottom section' o lock said wallfsect'ionsin theform of a mold, and mea-ns to prevent displaces ment of. said bottomsection dur'ing operatio'n,substantial'ly'as specified.

16. In a. moldingmachine, a walled inclo sure arranged to, receive the materials to be molded, a'bottom secured tosaid inclosure,

'a' passage through"said-bottom, almold supv ported{ ou tside of said inclosurefbelow' s a1d bottom in position toirecerve the mater-lals passing through said pass/a ge, manipulative may be delivered 5' into said inclosure, means direction away from said bottom, substan- 1 tia-lly as described.

'17. A machine for molding plastics and other materials, comprising a container ar- -anged to receive the materials to be molded, a bottom for saidcontainer, a passage for delivering materials into said container, a passage opening into said container'near and'ina'direction away from said bottom, a valve controlling said last named passage, a passage for. admitting pressure into said container, a mold supported below said bot-' tom, a passage through said bottom for delivering-materials from said container into said mold, and a support operable to move said niold toward said bottom in position to receive the materials from said last-named passage, substantially as described.

18. In a molding machine, a container arranged to receive the materials to be molded, a perforated mold at the bottom of said container, a passage whereby materials to be molded'may be delivered into said container, means forclosing said passage, a valve controlledpassage for admitting pressure into said container, a passage for admitting fluid upwardly into said container above said mold, and means supported by said container for moving said mold away from said container, substantially as specified. 19. In a machine for molding fibrous. and other materials, a container arranged to receive the materials to be molded, a passage whereby the materials may be delivered into i said container, means for closing sald passage, a mold at the bottom and outside of said container, links supporting said mold, r a passage for admitting fluid in an upward direction into said container above said mold, a valve controlling said passage, and lever mechanism for mechanically moving said mold away from said container to enable the molded objects to be removed from said mold,substantially as specified.

QOIIn a machine for molding plastics, a container arranged to receive the materials to be molded, a passage whereby the materialsmav be delivered into said container. a reticulated closure at the bottomof said 'container,.a series of links supporting said closure, a passage for delivering liquid into said container infi! an upward direction above said reticulated"closure, a valve controlling said last-named passage, a valve-controlled passage for admitting pressure into said container. a support for said retlculated clo-.

"-.. sure and lever mechanism for operating said support eitectively to move said. reticulated closure away from said container to enable objects to be removed from said closure, substantially as specified '21. A molding machine comprising a container arranged to receive the materials to be molded, a reticulated former atone side of said container, a swinging frame s11 porting said former, separate passage for admitting pressure and fluids into said' container and lever mechanism for moving-said reticulated former into and out of engage ment with said container, substantially as specified. '1 i c 22. In a molding machine, a container arranged to receive the materials to be molded, a passagefor delivering the 'materials intosaid container, means for closing said pasmold, links supported by the top of said container, and supporting said frame, a passage from saidcontainer into said mold, latching devices for holding said mold in closed adjustment, and lever connections whereby said links will move said mold to position to receive materials from said passage from said container, substantially as specified.

24. A machine of the character described, I comprising a container arranged to receive the materials to be molded, separate passage for admitting pressure and fluids into said container, a reticulated mold supported outside ,of said container, a swinging frame on which said mold is mounted, a device for moving said frame "and mold away from said container, and a passage from said container into said mold, substantially as specified.

25. A machine of the character described comprising a container arranged to receive the materials to be molded, links supported by said container, a mold, a vertically movable frame on which said mold is mounted, a passage from said container into said mold, connections whereby operation of said links will move said frame and mold toward and away from said container, and means for l admitting pressure into saidcontainer,substantially as specified. 4

26. A machine of the character described, comprising a container arranged to receive the materials to be molded, a mold movably supported outside of said container, a vertipassage, and a passage opening upwardly into said container above' said mold and above said first-named passage, substantially as specified. v

' 27. 'A machine of the character described, comprising a container arranged to receive the materials to be molded, a bottom for said container, a passage... for admitting pressure into said container near the 'top thereof, a passage opening into'said container near and in a direction and away from said bottom, a mold below said bottom, a passage through 'said' bottom for delivering materials into said mold, and mechanism for supporting said' mold in closed position to' receive the vmaterials from said last named passage and in open position to enable the articles to be removed after they 'have'been molded, substantially as described. e

28. In a' machine of the character described, a container arranged to receive the materials to be molded, a bottom for said container, a discharge passage for the ma- 25 terials f'through said bottom, a mold supported independently of said bottom, a ma-- nipulative support for holding said mold in closed position to receivethe materials through said'passage and operative to enable said mold to move'with respect to said bottom, a passage opening into said container adjacent and in the direction away from said bottom, and means for: admitting pressure into said container near the top thereof, to force the materialsout of said container into-said mold, substantially as described.

' 29. In a machine of the character described, a container arranged to receive the materials to be molded, a bottom secured to said container, a passage opening into said mold adjacent and in a direction away from saidbottom, a passage for admitting prese sure into said container near'th'e top there- ,of, a' mold outside of said container, a supscribed, a container arranged to receive materials to be molded, a bottom for said container; a passage through said bottom, a mold outside of said container, means for supporting said mold in closed position to receive the materials through said passage or in open position to enable the articles to be removed,-as desired, and a passage for admitting pressure into said container near the top thereof to force the materials into said mold, substantially as described.

31. In a machine of the character described, av container arranged to receive the materials to be molded, a bottom for said container, a passage for said container, a passage through said bottom, a mold outside of said container and below said bottom, manipulative means for supporting said mold in closed position to receive the manesses.

JULIAN H. RIVERS. 1,. 8.

Witnesses:

F. J. MGCASLIN, E. B. STEVENSON. 

